Update 7/26/12: It looks like the JRO03H update was final after all and has now started rolling out to everyone. Grab your XOOM and taste some Jelly Bean (thanks, @Fdiazreal and @iphilluv).

The Wi-Fi XOOM Jelly Bean update is almost here - after a brief delay it's finally rolling out to a limited group of soak testers who volunteer to provide feedback and test release candidates early. If all goes well, we should expect a wide release probably in the next few days, although if you're feeling brave, you can attempt to flash the update zip over your stock IMM76 build using a USB-OTG cable and these instructions.